filter-九游会真人

filter is an optical part which can attenuate the light intensity, change the spectral composition or limit the vibration surface. as a common accessory in photocatalysis experiment, the function of filter is to use glass or quartz substrate to plating different film materials to achieve the corresponding filtering effect. in the field of photochemistry research, filters are divided into transmission / reflection filters (according to the characteristics of the light emitted), cut-off / band-pass filters (according to the spectral characteristics); different types of filter combinations are used to obtain the radiation band required by the experiment.

all series of filters are made of quartz, which are made by german coating equipment and technology. they have very low wavelength thermal drift and very low time wavelength drift performance. the cut-off filter has a cut-off rate of more than 99.5%, and the visible band-pass filter has a transmittance of more than 85%. our company can provide light intensity measurement and luminous spectrum measurement service for each filter and light source before delivery.